Home / 778,811.60-1,074,138-537,038.72

Finding the Fourth Proportional to 778,811.60, 1,074,138 and 537,038.72

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Solution

The fourth proportional to 778,811.60, 1,074,138 and 537,038.72 is: 740,684.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,811.60 : 1,074,138 = 537,038.72 : x
  2. Step 2: Convert to fraction form
    778,811.60/1,074,138 = 537,038.72/x
  3. Step 3: Cross multiply
    778,811.60x = 1,074,138 × 537,038.72
  4. Step 4: Simplify right side
    778,811.60x = 576,853,696,623.36
  5. Step 5: Solve for x
    x = 576,853,696,623.36/778,811.60
  6. Step 6: Final answer
    x = 740,684.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.